Multiple Choice Question (MCQ)

If an empty rectangular water tank that has dimensions 100 centimeters, 20 centimeters is to be filled using a right cylindrical bucks with a base radius of 9 centimeters and a height of 20 centimeters, approximately how many buckets of water will it take to fill the tank?

  1. ×

    14

  2. 16

  3. ×

    18

  4. ×

    20

  5. ×

    22

Collected in the board: Function

Steven Zheng posted 2 months ago


Answer

  1. The volume of the rectangular tank is,

    100\times 20\times 40 =80000 cubic centimeters


    The volume of the bucket is

    \pi r^2h \approx 3.14\cdotp 9^2\cdotp 20 = 5086.8 cubic centimeters


    Divide the volume of the tank with the volume of the bucket

    80000 \div 5086.8 \approx 15.6


    So B is the choice

Steven Zheng posted 2 months ago

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